{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T18:11:59Z","timestamp":1772820719383,"version":"3.50.1"},"reference-count":44,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2006,1,13]],"date-time":"2006-01-13T00:00:00Z","timestamp":1137110400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2006,1,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Human monocytes adhere to activated platelets, resulting in the formation of platelet-monocyte complexes (PMC). Complex formation depends on the interaction between platelet-displayed P-selectin and the specific ligand for P-selectin on leukocytes, P-selectin glycoprotein ligand-1 (PSGL-1). We have recently shown that monocytes within PMC have increased adhesive capacity to the activated endothelium. To better understand the effect of platelet binding on the capacity of monocytes to adhere to activated endothelium, the P-selectin-PSGL-1 interaction-induced changes in integrin functionality were studied. The binding of platelets to monocytes via P-selectin-PSGL-1 interactions was shown to increase expression and activity of \u03b14\u03b21 and \u03b1M\u03b22 integrin, with a concomitant decrease in L-selectin expression. Furthermore, the binding of platelets to monocytes resulted in increased monocyte adhesion to intercellular adhesion molecule-1, vascular cell adhesion molecule-1, and fibronectin. Platelet binding was also responsible for an increase in monocyte transendothelial migration. Similar effects were observed after engagement of PSGL-1 with specific antibodies or with P-selectin immunoglobulin protein. Our data suggest that platelets, by binding via P-selectin to PSGL-1 on monocytes, induce up-regulation and activation of \u03b21 and \u03b22 integrins and increased adhesion of monocytes to activated endothelium. Hence, monocytes within PMC are in a higher state of activation and may have, therefore, an increased atherogenic capacity.<\/jats:p>","DOI":"10.1189\/jlb.0605318","type":"journal-article","created":{"date-parts":[[2006,1,14]],"date-time":"2006-01-14T01:53:31Z","timestamp":1137203611000},"page":"499-507","source":"Crossref","is-referenced-by-count":128,"title":["Platelet binding to monocytes increases the adhesive properties of monocytes by up-regulating the expression and functionality of \u03b21 and \u03b22 integrins"],"prefix":"10.1093","volume":"79","author":[{"given":"Paula A da Costa","family":"Martins","sequence":"first","affiliation":[{"name":"Departments of Experimental Immunohematology, Academic Medical Center , Amsterdam, The Netherlands"}]},{"given":"Janine M","family":"van Gils","sequence":"additional","affiliation":[{"name":"Molecular Cell Biology, Sanquin Research at CLB and Landsteiner Laboratory, Academic Medical Center , Amsterdam, The Netherlands"}]},{"given":"Anita","family":"Mol","sequence":"additional","affiliation":[{"name":"Molecular Cell Biology, Sanquin Research at CLB and Landsteiner Laboratory, Academic Medical Center , Amsterdam, The Netherlands"}]},{"given":"Peter L","family":"Hordijk","sequence":"additional","affiliation":[{"name":"Molecular Cell Biology, Sanquin Research at CLB and Landsteiner Laboratory, Academic Medical Center , Amsterdam, The Netherlands"}]},{"given":"Jaap J","family":"Zwaginga","sequence":"additional","affiliation":[{"name":"Departments of Experimental Immunohematology, Academic Medical Center , Amsterdam, The Netherlands"},{"name":"Department of Immunohematology and Blood Transfusion, Leiden University Medical Center , The Netherlands"}]}],"member":"286","published-online":{"date-parts":[[2006,1,13]]},"reference":[{"key":"2023033022213148000_jlb0499-cit-b1","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1172\/JCI117014","article-title":"Increased platelet deposition on atherosclerotic coronary arteries","volume":"93","author":"van Zanten","year":"1994","journal-title":"J. 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